MBeans search demo

Use MBeans to evaluate performance for the search demo.

Change to the demos directory.

The default location of the demos directory depends on the type of installation:
- Package installations: /usr/share/dse/demos
- Tarball installations: INSTALL_DIRECTORY/demos
Make demos/solr_stress your current directory.
Create the schema:
```
pushd resources/schema &&
 ./create-schema.sh
```
The following options are available:
- CQL table creation options:
  - --ssl use SSL for table creation over cqlsh
- Solr HTTP options:
  - -e CA_CERT_FILE: use HTTPS with the provided CA certificate
  - -E CLIENT_CERT_FILE: use the provided client certificate
  - -h HOST: hostname or IP for Solr HTTP requests
  - -a: Enable Kerberos
  - -u USERNAME: Kerberos username
  - -p PASSWORD: Kerberos password
The script creates the schema and posts the solrconfig.xml and schema.xml files to http://localhost:8983/solr/resource/demo.solr/solrconfig.xml and http://localhost:8983/solr/resource/demo.solr/schema.xml.

The script then creates the search index by posting to http://localhost:8983/solr/admin/cores?action=CREATE&name=demo.solr.

You can override the script defaults by specifying command line parameters:
-x schemafile.xml -t tableCreationFile.cql -r solrCofgFile.xml -k solrCore
Run the benchmark:
```
./run-benchmark.sh [--clients=CLIENTS_COUNT] [--loops=LOOPS_COUNT] [--fetch=FETCH_SIZE] [--solrCore=SOLR_CORE] [--testData=TEST_DATA_FILE] [--url=URL1,URL2,URL3...] [--qps=QPS] [--stats=true|false] [--seed=SEED_VALUE]
```
The following options are available:
- --clients: The number of client threads to create. Default: 1
- --loops: The number of times the commands list gets executed if running sequentially or the number of commands to run if running randomly. Default: 1
- --fetch: Fetch size for CQL pagination (disabled by default). Only the first page is retrieved.
- --solrCore: Search index name to run the benchmark against.
- --testData: Name of the file that contains the test data.
- --seed: Value to set the random generator seed to.
- --qps: Maximum number of queries per second allowed.
- --stats: Specifies whether to gather statics during runtime and create a csv file with the recorded values. Default: false
- --url: A comma delimited list of servers to run the benchmark against. For example: --url=http://localhost:8983,http://192.168.10.45:8983,http://192.168.10.46:8983. Default: http://localhost:8983
The demo creates a Search index named demo.solr and indexes 50,000 documents.

+ Example CQL commands:

+
```
./run-benchmark.sh --url=http://localhost:8983 --testData=resources/testCqlQuery.txt --solrCore=demo.solr
```
+
```
./run-benchmark.sh --url=http://localhost:8983 --testData=resources/testCqlWrite.txt --solrCore=demo.solr
```
+ See /demos/solr_stress/README.txt for execution modes and sample script commands.
In JConsole, expand com.datastax.bdp > search > demo.solr to view the MBeans.

The CommitMetrics and QueryMetrics MBeans are present.
In JConsole, in Search > demo.solr > CommitMetrics > Operations > getLatencyPercentile, type EXECUTE in the p0 text entry box and 0.95 in the p1 text entry box. Click the getLatencyPercentile button.

The Operation return value, 582 microseconds, appears:

MBeans search demo

Prerequisites

Procedure

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